Main Features:• 4 in 1 function: Sweeping, vacuuming, wet / dry mopping.• Anti-collision: IR sensors will detect the stairs and obstacles and not touch the furniture.• Working time: Built in 2200mAh NI-MH battery, 90 - 120mins working time on floor.• Self recharge: Automatic back to docking station when the battery is less than 20 percent.• LCD screen remote control: 38KHz infrared remote control in 10 - 15m distance.• 2 side brushes: Cleaning corner and edge place completely.• Wall follow function: Easy to get out from different spaces and clean every room of your house intelligently.• 2 speeds selected: Fast / slow are available.• Time schedule: 3 modes for presetting working time / one key to set cleaning time.• 800Pa powerful suction: Strong power for efficient cleaning, easy to absorb dust, hair, paper, reduce the pollution of PM2.5.• Climbing capacity: It can climb 15 degrees slope height, never impede by slight slope in your home.• Less than 45dB: Easy to help you solve the noise problem, provide a quiet environment for you.• Dust box capacity: 500ml.• Remote control distance: About 10 - 15 meters.• Charging time: About 1 - 2hrs.• Working time: About 3 - 4hrs.• Cleaning coverage: About 90 - 150 square centimeters.• The remote controller is powered by 2 x AA battery ( not included ) • 2 colors optional.